chore: initialize qiming workspace repository

qimingcode/packages/opencode/test/fixture/lsp/fake-lsp-server.js

@@ -0,0 +1,249 @@
+// Simple JSON-RPC 2.0 LSP-like fake server over stdio
+
+let nextId = 1
+let readBuffer = Buffer.alloc(0)
+let lastChange = null
+let initializeParams = null
+let diagnosticRequestCount = 0
+let registeredCapability = false
+const pendingClientRequests = new Map()
+let pullConfig = {
+  delayMs: 0,
+  registerOn: undefined,
+  registrations: [],
+  documentDiagnostics: [],
+  documentDiagnosticsByIdentifier: {},
+  documentDelayMsByIdentifier: {},
+  workspaceDiagnostics: [],
+  workspaceDiagnosticsByIdentifier: {},
+  workspaceDelayMsByIdentifier: {},
+}
+
+function encode(message) {
+  const json = JSON.stringify(message)
+  const header = `Content-Length: ${Buffer.byteLength(json, "utf8")}\r\n\r\n`
+  return Buffer.concat([Buffer.from(header, "utf8"), Buffer.from(json, "utf8")])
+}
+
+function decodeFrames(buffer) {
+  const results = []
+  let idx
+  while ((idx = buffer.indexOf("\r\n\r\n")) !== -1) {
+    const header = buffer.slice(0, idx).toString("utf8")
+    const match = /Content-Length:\s*(\d+)/i.exec(header)
+    const length = match ? parseInt(match[1], 10) : 0
+    const bodyStart = idx + 4
+    const bodyEnd = bodyStart + length
+    if (buffer.length < bodyEnd) break
+    results.push(buffer.slice(bodyStart, bodyEnd).toString("utf8"))
+    buffer = buffer.slice(bodyEnd)
+  }
+  return { messages: results, rest: buffer }
+}
+
+function send(message) {
+  process.stdout.write(encode(message))
+}
+
+function sendRequest(method, params) {
+  const id = nextId++
+  send({ jsonrpc: "2.0", id, method, params })
+  return id
+}
+
+function sendResponse(id, result) {
+  send({ jsonrpc: "2.0", id, result })
+}
+
+function sendNotification(method, params) {
+  send({ jsonrpc: "2.0", method, params })
+}
+
+function maybeRegister(method) {
+  if (pullConfig.registerOn !== method || registeredCapability) return
+  registeredCapability = true
+  sendRequest("client/registerCapability", {
+    registrations: pullConfig.registrations.map((registration, index) => ({
+      id: registration.id ?? `pull-${index}`,
+      method: registration.method ?? "textDocument/diagnostic",
+      registerOptions: registration.registerOptions ?? registration,
+    })),
+  })
+}
+
+function delayed(id, result, delayMs = pullConfig.delayMs) {
+  if (!delayMs) {
+    sendResponse(id, result)
+    return
+  }
+  setTimeout(() => sendResponse(id, result), delayMs)
+}
+
+function diagnosticsForIdentifier(identifier) {
+  return pullConfig.documentDiagnosticsByIdentifier[identifier] ?? pullConfig.documentDiagnostics
+}
+
+function workspaceDiagnosticsForIdentifier(identifier) {
+  return pullConfig.workspaceDiagnosticsByIdentifier[identifier] ?? pullConfig.workspaceDiagnostics
+}
+
+function documentDelayForIdentifier(identifier) {
+  return pullConfig.documentDelayMsByIdentifier[identifier] ?? pullConfig.delayMs
+}
+
+function workspaceDelayForIdentifier(identifier) {
+  return pullConfig.workspaceDelayMsByIdentifier[identifier] ?? pullConfig.delayMs
+}
+
+function handle(raw) {
+  let data
+  try {
+    data = JSON.parse(raw)
+  } catch {
+    return
+  }
+
+  if (typeof data.method === "undefined" && typeof data.id !== "undefined") {
+    const pending = pendingClientRequests.get(data.id)
+    if (!pending) return
+    pendingClientRequests.delete(data.id)
+    sendResponse(pending, data.result ?? null)
+    return
+  }
+
+  if (data.method === "initialize") {
+    initializeParams = data.params
+    sendResponse(data.id, {
+      capabilities: {
+        textDocumentSync: {
+          change: 2,
+        },
+      },
+    })
+    return
+  }
+
+  if (data.method === "test/get-initialize-params") {
+    sendResponse(data.id, initializeParams)
+    return
+  }
+
+  if (data.method === "test/request-configuration") {
+    const id = sendRequest("workspace/configuration", data.params)
+    pendingClientRequests.set(id, data.id)
+    return
+  }
+
+  if (data.method === "initialized" || data.method === "workspace/didChangeConfiguration") {
+    return
+  }
+
+  if (data.method === "textDocument/didOpen") {
+    maybeRegister("didOpen")
+    return
+  }
+
+  if (data.method === "textDocument/didChange") {
+    lastChange = data.params
+    maybeRegister("didChange")
+    return
+  }
+
+  if (data.method === "test/trigger") {
+    const method = data.params && data.params.method
+    if (method === "client/registerCapability") {
+      sendRequest(method, {
+        registrations: [
+          {
+            id: "test-diagnostic-registration",
+            method: "textDocument/diagnostic",
+            registerOptions: { identifier: "syntax" },
+          },
+        ],
+      })
+      return
+    }
+    if (method === "client/unregisterCapability") {
+      sendRequest(method, {
+        unregisterations: [{ id: "test-diagnostic-registration", method: "textDocument/diagnostic" }],
+      })
+      return
+    }
+    if (method) sendRequest(method, {})
+    return
+  }
+
+  if (data.method === "test/configure-pull-diagnostics") {
+    pullConfig = {
+      delayMs: data.params?.delayMs ?? 0,
+      registerOn: data.params?.registerOn,
+      registrations: data.params?.registrations ?? [],
+      documentDiagnostics: data.params?.documentDiagnostics ?? [],
+      documentDiagnosticsByIdentifier: data.params?.documentDiagnosticsByIdentifier ?? {},
+      documentDelayMsByIdentifier: data.params?.documentDelayMsByIdentifier ?? {},
+      workspaceDiagnostics: data.params?.workspaceDiagnostics ?? [],
+      workspaceDiagnosticsByIdentifier: data.params?.workspaceDiagnosticsByIdentifier ?? {},
+      workspaceDelayMsByIdentifier: data.params?.workspaceDelayMsByIdentifier ?? {},
+    }
+    registeredCapability = false
+    sendResponse(data.id, null)
+    return
+  }
+
+  if (data.method === "test/register-configured-pull-diagnostics") {
+    maybeRegister(undefined)
+    sendResponse(data.id, null)
+    return
+  }
+
+  if (data.method === "test/publish-diagnostics") {
+    sendNotification("textDocument/publishDiagnostics", data.params)
+    return
+  }
+
+  if (data.method === "test/get-last-change") {
+    sendResponse(data.id, lastChange)
+    return
+  }
+
+  if (data.method === "test/get-diagnostic-request-count") {
+    sendResponse(data.id, diagnosticRequestCount)
+    return
+  }
+
+  if (data.method === "textDocument/diagnostic") {
+    diagnosticRequestCount += 1
+    delayed(
+      data.id,
+      {
+        kind: "full",
+        items: diagnosticsForIdentifier(data.params?.identifier ?? ""),
+      },
+      documentDelayForIdentifier(data.params?.identifier ?? ""),
+    )
+    return
+  }
+
+  if (data.method === "workspace/diagnostic") {
+    diagnosticRequestCount += 1
+    delayed(
+      data.id,
+      {
+        items: workspaceDiagnosticsForIdentifier(data.params?.identifier ?? ""),
+      },
+      workspaceDelayForIdentifier(data.params?.identifier ?? ""),
+    )
+    return
+  }
+
+  if (typeof data.id !== "undefined") {
+    sendResponse(data.id, null)
+  }
+}
+
+process.stdin.on("data", (chunk) => {
+  readBuffer = Buffer.concat([readBuffer, chunk])
+  const { messages, rest } = decodeFrames(readBuffer)
+  readBuffer = rest
+  for (const message of messages) handle(message)
+})